[PATCH v2 15/22] media: rockchip: rga: share the interrupt when an external iommu is used

Sven Püschel s.pueschel at pengutronix.de
Wed Dec 3 07:52:37 PST 2025


From: Michael Olbrich <m.olbrich at pengutronix.de>

The RGA3 and the corresponding iommu share the interrupt. So in that
case, request a shared interrupt so that the iommu driver can request
it as well.

Signed-off-by: Michael Olbrich <m.olbrich at pengutronix.de>
Signed-off-by: Sven Püschel <s.pueschel at pengutronix.de>
---
 drivers/media/platform/rockchip/rga/rga.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/rockchip/rga/rga.c b/drivers/media/platform/rockchip/rga/rga.c
index f28ec88c186fa..1bfc4021f4a7b 100644
--- a/drivers/media/platform/rockchip/rga/rga.c
+++ b/drivers/media/platform/rockchip/rga/rga.c
@@ -718,7 +718,8 @@ static int rga_probe(struct platform_device *pdev)
 		goto err_put_clk;
 	}
 
-	ret = devm_request_irq(rga->dev, irq, rga_isr, 0,
+	ret = devm_request_irq(rga->dev, irq, rga_isr,
+			       rga_has_internal_iommu(rga) ? 0 : IRQF_SHARED,
 			       dev_name(rga->dev), rga);
 	if (ret < 0) {
 		dev_err(rga->dev, "failed to request irq\n");

-- 
2.52.0




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